Combined solid and liquid system for controlling
nuclear reactors

ABSTRACT

A CONTROL SYSTEM FOR A NUCLEAR REACTOR COMPRISING HOLLOW MECHANICALLY OPERATED CONTROL RODS AND A LIQUID NEUTRON ABSORBER WHICH MAY BE CIRCULATED THROUGH THE HOLLOW CONTROL RODS. THE LIQUID NEUTRON ABSORBER PROVIDES   THE NUCLEAR REACTOR WITH A REDUNDANT SAFETY SYSTEM TO DEACTIVATE THE REACTOR.

DEFENSIVE PUBLICATION UNITED STATES PATENT OFFICE Published at the request of the applicant or owner in accordance with the Notice of Dec. 16, 1969, S69 0.G. 687. The abstracts of Defensive Publication applications are identified by distinctly numbered series and are arranged chronologically. The heading of each abstract indicates the number of pages of specification, including claims and sheets of drawings contained in the application as originally filed. The files of these applications are available to the public for inspection and reproduction may be purchased for 30 cents a sheet.

Defensive Publication applications have not been examined as to the merits of alleged invention. The Patent Oflice makes no assertion as to the novelty of the disclosed subject matter.

PUBLISHED APRIL 17, 1973 T909,020 COMBINED SOLID AND LIQUID SYSTEM FOR CONTROLLING NUCLEAR REACTORS Reinhard Froelich, Scottdale, and Howard W. Yant, I Greensburg, Pa., assignors to Westinghouse Electric Corporation, Pittsburgh, Pa.

Filed June 30,1972, Ser. No. 267,812 Int. Cl. G21c 17/10 U.S. Cl. 176-86 R gas 2 Sheets Drawing. 16 Pages Specification ZO A control system for a nuclear reactor comprising hol- 22 low mechanically operated control rods and a liquid neutron absorber which may be circulated through the hollow control rods. The liquid neutron absorber provides the nuclear reactor with a redundant safety system to I v F coo -r deactivate the reactor. 28 ABSORBER 29 CONT ROI.

32 L SYSTEM April 17,, 1973 R. FROELICH ET AL COMBINED SOLID AND LIQUID SYSTEM FOR CONTROLLING NUCLEAR REACTORS 2 Shuts-Sheet 1 Filed June 30, 1972 Du I!!! If!!! I RMEDIATE HEAT EXCHANGER INTE April 17, 1973 FRQELICH ET AL T909,020

COMBINED SOLID AND LIQUID SYSTEM FOR CONTROLLING NUCLEAR REACTORS 2 Sheets-Sheet 2 Filed June 30, 1972 FIG.3.

VALVE OPERATOR CLEANUP SYSTEM all FIG. 4.

CLEANUP SYSTEM 

